Editor’s Note: This is from a non-scientific study, but results are interesting.

Dogs sleep 19 hours a day (or so.)
They’re really not very active at all.
They will show up for all mealtimes,
Or sometimes, just to catch a ball.

So, eighty percent per day asleep,
A vast amount of total time spent,
Yet, when I take a one-hour nap,
That hour will be in the twenty percent.